This Linux kernel change "sched/cpufreq: Fix kobject memleak" is included in the Linux 5.1 release. This change is authored by Tobin C. Harding <tobin [at] kernel.org> on Tue Apr 30 10:11:44 2019 +1000. The commit for this change in Linux stable tree is 9a4f26c (patch).
sched/cpufreq: Fix kobject memleak Currently the error return path from kobject_init_and_add() is not followed by a call to kobject_put() - which means we are leaking the kobject. Fix it by adding a call to kobject_put() in the error path of kobject_init_and_add(). Signed-off-by: Tobin C. Harding <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tobin C. Harding <[email protected]> Cc: Vincent Guittot <[email protected]> Cc: Viresh Kumar <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
There is one line of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.
kernel/sched/cpufreq_schedutil.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index 5c41ea3..3638d23 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -771,6 +771,7 @@ static int sugov_init(struct cpufreq_policy *policy) return 0; fail: + kobject_put(&tunables->attr_set.kobj); policy->governor_data = NULL; sugov_tunables_free(tunables);